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Related Experiment Video

Updated: May 4, 2026

Force System with Vertical V-Bends: A 3D In Vitro Assessment of Elastic and Rigid Rectangular Archwires

Force System with Vertical V-Bends: A 3D In Vitro Assessment of Elastic and Rigid Rectangular Archwires

Published on: July 24, 2018

An indigenously designed apparatus for measuring orthodontic force.

S P Saravana Dinesh¹, A V Arun², K K Shantha Sundari²

¹Senior Lecturer, Department of Orthodontics, Saveetha Dental College , Velappanchavadi. Chennai-77, India .

Journal of Clinical and Diagnostic Research : JCDR

|January 7, 2014

Summary

An indigenous apparatus effectively measures orthodontic force from elastomeric chains, showing comparable results to the Instron universal testing machine for dental applications.

Keywords:

Elastomeric chain Instron universal testing machine Orthodontic force

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Last Updated: May 4, 2026

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Published on: July 24, 2018

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Area of Science:

Biomaterials Science
Orthodontic Engineering
Dental Mechanics

Background:

Accurate measurement of orthodontic forces is crucial for effective treatment planning and patient outcomes.
Existing methods for measuring forces from orthodontic auxiliaries can be complex or expensive.
There is a need for a reliable and accessible device to quantify forces generated by common orthodontic materials.

Purpose of the Study:

To design and develop an indigenous apparatus for measuring orthodontic force.
To compare the force measurements of elastomeric chains using the new apparatus against a standard Instron universal testing machine.
To validate the efficacy of the developed indigenous device for orthodontic force assessment.

Main Methods:

An indigenously designed apparatus with a steel platform, movable arm, and screw gauge was developed.
An electric circuit integrated with a signal conditioner measured forces exerted by elastomeric chains between orthodontic brackets.
Twenty elastomeric chains were tested, and forces were calibrated using both the indigenous apparatus and an Instron universal testing machine.

Main Results:

Both the indigenous apparatus and the Instron machine showed similar force ranges for elastomeric chains.
Initial activation (1mm) yielded forces of 100-150 grams.
Forces increased significantly to 300-350 grams at 5mm activation and further to 400-450 grams at 10mm activation.

Conclusions:

The developed indigenous apparatus demonstrates efficiency in measuring tensile forces generated by orthodontic auxiliaries.
The device provides comparable results to the Instron universal testing machine, suggesting its utility in clinical and research settings.
This innovation offers a potentially more accessible method for quantifying orthodontic forces.